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PATENT OEFIGEQ;

HARRY HAAS, OF NEW YORK, N. Y.

fPOLlSHlNG COMPOUND.

SPECIFICATION forming part of Letters Patent No. 244,595, dated July 19,1881.

Application filed J une 8, 1881. (No specimens.)

I made of rouge, crocus, tripoli, emery, corundum, lime, or othermineral powder, or a mix- I ture of two or more such powders, and acertain proportion of stearine, paraffinc, or other binding material,which will hold the grains of the powder together in the form of a cakeor stick. The stearine or binding material has no polishing quality, butrather impairs the polishing quality of the mineral powder, and is onlyused in the compound in the smallest quantity that suffices to hold thepowder to the wheels or buffs or other polishing-surfaces to which thecompound is applied by pressing the cake or stick against them whilethey are in motion.

In making experiments with various bind-' in g materials for themanufacture of polishing compounds of the character hereinabovementioned, I have discovered that ozocerite possesses the qualitiesnecessary to such binding material in a very marked degree -that is tosay, first, its binding quality is greater than that of stearine,paraffine, or the binding materialsheretofore employed, so that asmaller quantity of it in proportion to the quantity of the powder issufficient, and the cakes or sticks are not so liable to breakor-crumble when pressed against the wheels or bufi's second,

on the contrary,its peculiar waxy nature rather improves the saidquality; third, it holds the compound better to the wheels or buffs whenthe latter-are in rapid motion, so that it will not fly off; fourth, itis cheaper than the stearine or para-ffine.

The quantity of the ozocerite which I use in the compound in proportionto the polishing mineral powder may be varied considerably, but maygenerally be from ten (10) pounds to twenty-five (25) pounds ofozocerite to one hundred (100) pounds of the powder, consisting ofrouge, crocns, tripoli, emery, corundum, lime, or other mineralsubstance commonly used or suitable for polishing purposes, or a mixtureof two or more such substances, a greater proportion being generallynecessary for the finer grades and a smaller proportion for the coarsergrades of polishing substance.

To make the compound the ozocerite is melted in a suitable vessel heatedby a fire or by other suitable means, and while this is kept atmelting-heat the mineral powder is added to it and stirred and worked orrubbed into it until thoroughly incorporated, and while the compound isstill plastic it is molded of pressed, or otherwise formed into sticksor slabs of suitable or convenient size for use.

Various kinds of ozocerite may be used, either crude or purified; butthe crude, being cheaper, and making as good a compound as the purified,is preferable. 7

What I claim as my invention, and desire to secure by Letters Patent,is-

A polishing compound consisting of a mineral polishing-powder andozocerite, substantially as herein described.

j H. L. HAAS. Witnesses:

HENRY T. BROWN, FREDK. HAYNES.

